ar·ray

– verb
1. to place in proper or desired order; marshal.
2. to clothe with garments, esp. of an ornamental kind; dress up; deck out.
– noun
3. order or arrangement, as of troops drawn up for battle.
4. military force, esp. a body of troops.
5. a large and impressive grouping or organization of things.
6. regular order or arrangement; series.
7. a large group, number, or quantity of people or things.
8. attire; dress.
9. an arrangement of interrelated objects or items of equipment for accomplishing a particular task.
10. a. an arrangement of a series of terms according to value, as from largest to smallest.
b. an arrangement of a series of terms in some geometric pattern, as in a matrix.

ma·trix

– noun
1. something that constitutes the place or point from which something else originates, takes form, or develops.
2. a formative part.
3. a. the intercellular substance of a tissue.
b. ground substance.
4. the fine-grained portion of a rock in which coarser crystals or rock fragments are embedded.
5. fine material, as cement, in which lumps of coarser material, as of an aggregate, are embedded.
6. gangue.
7. a crystalline phase in an alloy in which other phases are embedded.
8. a mold for casting typefaces.
9. master.
10. a multiple die or perforated block on which the material to be formed is placed.
11. a rectangular array of numbers, algebraic symbols, or mathematical functions, esp. when such arrays are added and multiplied according to certain rules.
12. a rectangular display of features characterizing a set of linguistic items, esp. phonemes, usually presented as a set of columns of plus or minus signs specifying the presence or absence of each feature for each item.